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N.PETERS. PHOTO-LITHOGRAPHER. WASHINGTON. D C.

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lu-tien 'tates atfutfffitri WILLIAM r. Daarna, on Hernan-Ln.. MASSACHUSETTS.

Leners Patent No. 78,941, aan June 1s, 186s.

IMPROVEMENT IN LOOMS.

TO ALL PERSONS TO WI-IOM THESE PRESENTS MAYCOME: y

Be it known that I, WILIJIAM F. Daarna, of Hopedale, in the county of Worcester, and State of Massachusetts, have invented a new and useful Improvement in Looms for weaving cloth; .and I do hereby declare Y;

the 'Same' to be fully described in thel following specification, and represented in the accompanying drawings, of Which- Figure l is a top view, and l Figure 2 an end elevation of a loom-frame withthe yarn-beam .and various otherV parts, and with my' i-nven.- tion connected therewith.

thereto.

Such other iguresfas may be necessary t'o the'illustration ofvmy invention will be hereinafter referred to and explained. f y

,The purpose of myin-.vention is to prevent theiorination in the cloth, 'while it is being woven, of what weavers, in common parlance, term thick or thin` places# The productionY of the thin places resultslfrom the continued operation of either. the .take-ub or let-oft' mechanisms, or both of them, after the breakage or running out of a illing or weft-thread, and the shifting of the driving-belt from the fast to the loose pulley, occasioned by the movement of theA shipper. The production of jthc thick places usually takes-place by over-'action of the means adopted to prevent the thin ones, or by other causes well known to weavers.

In order-to accomplish the above-mentioned'pu1;pose, I have combined with the take-,up and letcti` mechan- Figure 3 an elevation ofthe breast-beams'ide of the loom-frame and the mechanism immediately adjacent isms, and the stopping-mechanism of' a loom, certain devices or mechanism, to be hereinafter described; and,

furthermore, I have 'combined with the last-mentioned mechanism and the'shipper a means or 'mechanism by which the shippe'', during its inward movement, will cause the filling-fork slide to be released fromthe mechanism which -I have applied to it for'holding ithack, and thereby eifeeting therpurpose of my invention.

l In the drawings, A denotes'fthezyarn-beam, Brthe lay, G the loomffr'ame, and Dthe take-up ratchet of the cloth-beam or roller'.

A lIn such drawin s, I have re resented what is termed the. Bartlett let-oit mechanism, one well known to` weavers. Mylinrenton, however, I do not confine to its connection with this particular let-oii mechanism, as almost any 'other well-known one may be substituted.

Of the Bartlett let-oiT-mechanisni, adenotes the whip-roller, over which the yarn, in'its'course toivard'the breast-beam, passes from the' beam A.. i bis the whip-roll shaft; c, an arm, extending downA from the said shaft, and being jointed to Aa slide-rod, d, .which is Supported byfand so as to .slide freely through a bracket, e, 'projccting from the loom-frame. l A

` A helical spriDgM'f, encompasses ,the ro'dand, by hearing against a shoulder, g, thereof, and also against the bracketfelevates thc whip-rollcr, so as to' give tension to the warps. v Y

Ordinarily there is a ollar or shoulder fixed on the rod, to act against the lever h, through whose upper arm the' rod passes, but'I dispense with such collar, employing, instead of it, an arm, J, provided with a. shoulder or projection, -This arm, J, Ijoint to the upper arm of the lever L, and extend it forward directly vover and upon the ngcr or arm H, projecting 'from the rod R, which usually extends along underneath the breastfbeam, and hasan arm, G, projecting upH from itdirectly in'rear of and against the end of the stop-motion slide T. The said projection z', whenthe arm J is in its lowestposition, will 'be met by the end ofthe rod d, during a. forward movement of such rod, and wi-ll'thereby'move the Vlever h on its fu1crum,7c.

The lower arm of the leverlt isjointed to one end of a rod, Z, which, at its other end, is jointed to a horizontal lever, m, carrying` an impelling-pawl`, n, tor engage with a ratchet, o. i This ratchet is fixed on an upright` shaft, 79, provided with a-worm or'scgrew, g, to engage with a wormsgear", r, iiiced on a horizontal shaft, s. This shaft s hasa pinion, t, fixed on it,y to'engage with a gear, u, constituting one head of the yarn-beam On the slide-rod Z isa collar, lw. A rod, '91, having an arm, y, applied tov the rod Z so as to slide thereon, extends from the colla-r w to and isjointed to an arm, z, extending from tho sword of the lay. When the `rod Z'is advancedA by the movement of the whip-roller, caused by the strain of the yarn thereon,

such rod will be forced against the shoulder, z', of the arm J, and will thereby move the lever h, so as to cause the impelling-pawl n to. recede on the ratchet o., Next, the forward movement of the lay, to beat up the filling,

ivillcause the'pawl to be moved,4 so asfto turn the ratchet, and thusY produce the delivery of' yarn from thebeam". The usual cam-shaft is shown at a', the draw-pawl, b', of the take-up ratchet being 'jointed tothe wrist of a crank, c, fixed on the end. ofthis shaft. The retaining-pawl of the said ratchet is showu at I, as 'applied to 'a stud, d', projecting from'the loom-frame. From the said retaining-pawl a stud, ca ,l'pi-ojects, and extends directly-lover and upon the arm H, by which means the arm' I-Lwhile being raisedup, will carry with it the said pawl I, so as to force it outof action with the ratchet. i

The iilling-fork af the stop-motion or mechanism is shown at e as jointed to the slide T. A vertical section of the loom, taken through this slide, is represented in Figure 4.

Figure 5 is a. side vie-w of the slide T, and Figure 6 a horizontal section of it, its spring-catchf, and other parts, on `the shipper-plate. T he said spring-catch (whiehconsists of a spring and a lstud or pin) is fastened to the side of one of the vertical guides g g, between which the slide T plays. The stud ofthe catch, shown at 7i', extends through a hole inthe guide g', soasto pass into afnotch, 'made in the slide T', as shown in g. 5.

Furthermore, a slider, N, placed on the notched plate]c, of the shipper M, or arranged thereon,vv as shown in igs.' 1 and 6, cxtendsthrough the n 'ext adjacent guide, gand thenotch e", and against the spring of the When the shipper4 is moved inward, for thepurpose of throwing thefdriving-belt from the loose tothe fast pulley of the loom, it will meet the outer end of the slide N, and willlforce such slide endwise, and against the springfcatchf, sofas to throw it out of action with the slide-T, viu.ordcr to allow suoli slide tohe advanced by I theaction of the shipper against a lever, L, arranged on the shipper-plate, and jointedto the slide Tl The tail of the filling-fork has a hook, Z', to operate in connection with a lever,`m, arrz.nged as represented in sgg.; mid 4. A cam, n', fixed ou the camshaft,` is to operate against the lever, so as to move it while the camshaft is in revolution.'

The' grid of the fork is shown at 4o. This grid, the fork ci, -the lever m', the earn n', the slider T, the lever L, the shippenplate, with theshipper and its belt-fork, constitute what is usual-lytermed the stop-motion or mechanism, its construction and operation being well understood by weavers. i v

'Whenv a'lling-thread runs out or breaks, the 'slide T will be forced back, and, Aas a necessary consequence, the shipper or shipperlever will bethrownout of its holding-notch of the shipper-plate, and by its spring will bemoved so as to cause the driving-belt to be moved from the fast to the loose pulley. The loom then ought to stop, but, owingto the momentum generated in .its parts, it will continue in loperation generally for one or more picks, such movement being-productive of' the evil consequence hereinbefore mentioned. I

Vlith my addition to the loom,`its take-up and let-od' motions or mechanisms willbe arrested in their move-l ments as soon as the slide maybe forced back, for while it so goes back, ythe spring-catelrf-ivil1 slip into the'- -notch of the slide T, end thus will prevent the slide from moving forward. In'going backward, the slide T will beforced against thearmG, and move it, and cause it to revolve oturn themed R in a manner to elevatcthe arm H, and causeit to simultaneously force upward the retaining-pawl, I, of the take-up ratchet D, andthe arm J, with the shouldem'. This will prevent the operation of the take-up and let-oi mechanisms or motions.

AWhen the shipper is next moved, in order' to -p'ut the loom .again in operation, the slider Nnvill be moved againstthe catchf, seas to force it out of thenotch of the slider T so-as to allow the slider to be moved by the lever IL, when lmoved by the shipper in goinginto the holding-notch of the shipper-plate. Sometimes I ,apply the arm H to the impelling-pawl of thev take-up ratchet, so as to lift it instead of the vretainingfpawl I, theeffect in either case being to arrest the taking up cf the cloth.

I am aware that, for the purpose of effecting the stoppage of the delivery of the yarn, as well ns the taking Aup ofthe cloth,iit hasbeen customary to combine a pawl andrack and other mechanism with the r'ctaining-pawl of the ratchet of the cloth-beam, anda slide-bar 'of the yarn-delivery motion, such being as represented and described inIjette'rs Patent, No. 34,451, dated `February 18,1862, and granted to Albert Stockwell and B. D@ IIumes. Consequently, I make .no claim to suchas my invention.

The yarn-delivery mechanism d csc'ribedin the ,said patent had no dcpressible \vhip'-roller such as used by me, and which, with other mechanism, servesto set-baekthe impelling-pawl of the worm-shaft ratchet. I

I therefore claim the 'arrangement and combination 'of the arm J, and its" shoulder, z`, or the equivalent of the' latter, with the arml and its actuating mechanism, the 'slide-rod-cl and its actuating mechanism,'(incluslve of the vibratory whip-roller, .or any equivalent therefor, placed over the yarnbca m,) and the levcrl and-other mechanism for' setting back the iuipellingpaw-l ,'n, of the ratchet o, the whole being'su'bstantially as explained.

I yalso claim the combination ofthe spring-catchf, or its equivalent, with the stop-motion and the mechanism for actuating 'the retaining-peril of the cloth-bcam ratchet.

v I alsoclaim the combination of the .slider N, or its equivalent, with the stop-motion and the spring-catch ff" a. lied to the slider T thereof as and for the purA 'ose specified.

PP p' wM. F. DRAPER.

Witnesses:

n. H'. EDDY, F. 1?.' Himsa 

